.left {
  color: red;
  float: left;
}

.right {
  color: orange;
  float: right;
}

.header {
  color: blue;
}

.bottom {
  color: green;
}

.title {
  font-size: 20px;
  line-height: 40px;
  text-align: center;
}
.border {
  border: 1px solid #c0c0c0;
  padding: 50px;
  text-align: center;
}
